Bought myself a brown towel to try and solve the white spots on my celtic thatch projects.
Hmmm...made two huts for those cursed celts BUT..
my white towel is much much better because it has super long loops. THe 'new' towel looked good enough but hasnt the same depth and look under the pva.
So...get the thickest towels for any thatch projects is my humble advice.
Hope thats of some help